四期一标段土方.doc

目 录 一、工程概况··············································3 1.1、 一般概况············································3 1.2、 设计概况············································3 1.3、围护工程量统计·············································5 二、地质条件··············································6 三 、编制依据·············································8 四、主要施工方案··········································9 4.1、 土钉墙支护概述·······································9 4.2、 土钉施工·············································10 4.3、编制钢筋网···········································11 4.4 、喷射砼面层··········································11 4.5 、 施工流程图·········································12 4.6、土钉墙施工的主要技术参数·····························12 4.7、质量保证措施··········································13 4.8、基坑围护应急措施······································14 4.9、质量检查标准··········································15 4.10、基坑监测措施··········································15 土方开挖方案············································15 5.1、工程特点及难处················································15 5.2、施工部署·······················································15 5.3、施工准备·······················································16 5.4、基坑挖土·······················································16 5.5、挖土质量、工期施工管理及措施·······························17 5.6、土方开挖应急预案··············································17 5.7、挖土分层施工计划···············································19 5.8、土方开挖施工机械 ·············································· 19 六、施工质量保证措施··········································20 七、施工安全技术措施··········································20 7.1施工现场安全制度···········································20 7.2施工现场临时用电安全措施···································21 7.3机械设备安全管理············································21 7.4防火措施····················································21 八、文明施工管理措施···········································22 九、主要施工机械设备···············